Essilor International (Compagnie Generale D'optique)

Essilor International

Essilor International (Compagnie General D'optique)

Martha Hernandez

Gildas Marin

Thierry Bonnin

Pedro Ourives

Carlos Dorronsoro

Benjamin Rousseau

Konogan Baranton

Laurent Calixte

Cécile Petignaud

Susana Marcos Celestino

Marie-Gaelle Froeliger

Bérangère Donetti

Susana Marcos

Mirian Velasco

Pablo De Gracia Pacheco

Sebastien Lemay

Berangere Donetti

A method for determining an ophthalmic lens having unwanted astigmatism, the ophthalmic lens being adapted to a wearer, the method including: a wearer prescription data providing during which wearer prescription data indicative of an ophthalmic prescription of the wearer are provided; a wearer focal data providing during which wearer focal data indicative of the wearer preferred image focal plan are provided; an ophthalmic lens determining during which the ophthalmic lens is determined based on the prescription of the wearer and the wearer focal data to reduce impact of unwanted astigmatism of the ophthalmic lens for the wearer.

Method for determining an ophthalmic lens having unwanted astigmatism

The invention relates to a device for measuring the subjective refraction of a person in near and/or medium vision, which comprises, according to the invention, for each eye of the person, a correction mounting () provided with at least one corrective lens, the correction mountings () being arranged such that the person looks through the lenses. The position of each correction mounting () is variable such as to adjust an angle (a) between the axes of the lenses.

Device and method for measuring subjective refraction

A method for providing a spectacle ophthalmic lens to a wearer, the method comprising the following consecutive steps: measuring the visual acuity value(s), VA, of the eye(s) of the wearer or the binocular visual acuity value, VA, of both eyes of the wearer where the eye(s) of the wearer is (are) substantially free of low order aberrations or is (are) corrected of low order aberrations; calculating thanks to computer means a design of the spectacle ophthalmic lens or selecting a design in a spectacle ophthalmic lens design data base by adapting the management of residual astigmatism based on the measured visual acuity value(s) of the eye(s) of the wearer.

Method for providing a spectacle ophthalmic lens by calculating or selecting a design

A method implemented by computer means for optimizing the design of a spectacle ophthalmic lens comprising: a) providing the residual astigmatism value and orientation data of a spectacle ophthalmic lens design for at least one gaze direction; b) providing the astigmatism and coma values and orientations data of an eye of a wearer; c) providing an optimized spectacle ophthalmic lens comprising adapting the management of astigmatism and coma of an lens-eye system based on a combination of the astigmatism and coma of the lens-eye system so as to improve the acuity versus distortion for the wearer's eye and where the lens-eye system consists of the spectacle ophthalmic lens design and the wearer's eye, with the proviso that the RMS value of the astigmatism of the lens-eye system is equal or greater to 0.025 &#x3bc;m and that the RMS value of the coma of the lens-eye system is equal or greater to 0.025 &#x3bc;m. A computer program product carrying out at least one of the steps.

Method for providing a spectacle opthalmic lens by calculating for selecting a design

A method for providing a spectacle ophthalmic lens to a wearer, the method comprising: measuring the higher order aberrations in at least an eye of the wearer; calculating a design of the spectacle ophthalmic lens or selecting a design in a spectacle ophthalmic lens design data base by adapting the management of residual astigmatism based on the measure of higher order aberrations in the eye of the wearer.

A method for determining an optimal eyeglass lenses design for a viewer () comprising the successive steps of: showing the viewer () a stereoscopic scene including optical effects of a first lens design;&#x2014;introducing a relative movement between the viewer () and the shown stereoscopic scene, said scene being shown with optical effects of the first lens design; expressing the viewer's opinion; showing the viewer () a stereoscopic scene including optical effects of a modified lens design; introducing a relative movement between the viewer () and the shown stereoscopic scene, said scene being shown with the modified lens optical effects; expressing again the viewer's opinion; repeating the three last steps up to viewer's satisfaction. A system for customizing vision correction suitable to implement said method. Related computer program for dynamically calculating a stereoscopic image. Related computer program for actuating an electro-active component.

Method for optimizing and/or manufacturing eyeglass lenses

A method to assess objectively visual characteristics of one eye () of a patient () comprising the steps of: a) positioning the patient's () head in a reading position, b) determining the visual characteristics by using a device () arranged to assess objectively visual characteristics of the eye (), the device being arranged to emit a light beam (). Relates also to a system for assessing objectively visual characteristics of one eye () of a patient () comprising:&#x2014;a head support arranged to position the patient's () head in a reading position, a device () arranged to assess objectively visual characteristics of the eye (), the device () being arranged to emit a light beam ().

Method and system to assess objectively visual characteristics

A method is disclosed for determination of an ophthalmic lens for a wearer for whom a near-vision and far-vision astigmatism prescription has been made out, the near-vision astigmatism being different from the far-vision astigmatism. The method includes the steps of: choosing a starting lens and defining a current lens equal to the starting lens; optimization, in worn conditions, of the current lens using as a target the astigmatism for which the wearer has been giving a prescription for far vision and the astigmatism for which the wearer has been given a prescription for near vision.

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Charenton le Pont, France

Martha Hernandez